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Bell's Palsy Underlying Cause
Facts about Bell's palsy:
- Bell's palsy is caused by inflammation and irritation of the facial nerve.
- The cause for this inflammation is not known.
- Corticosteroid medications are used to treat Bell's palsy because they reduce inflammation.
- Bell's palsy is also treated with antiviral medication because there is some evidence that a virus might cause inflammation of the facial nerve.
PubMed Bell's Palsy References
- Adour KK, Ruboyianes JM, Von Doersten PG, et al: Bell's palsy treatment with acyclovir and prednisone compared with prednisone alone: a double-blind, randomized, controlled trial. Ann Otol Rhinol Laryngol 1996 May; 105(5): 371-8. 
- Murakami S, Mizobuchi M, Nakashiro Y, et al: Bell palsy and herpes simplex virus: identification of viral DNA in endoneurial fluid and muscle. Ann Intern Med 1996 Jan 1; 124(1 Pt 1): 27-30. 
- Piercy J. Bell's palsy. BMJ. 2005 Jun 11;330(7504):1374. 
- Salinas R. Bell's palsy. Clin Evid. 2003 Dec;(10):1504-7. 
- Salinas RA, Alvarez G, Ferreira J. Corticosteroids for Bell's palsy (idiopathic facial paralysis). Cochrane Database Syst Rev. 2004 Oct 18;(4):CD001942.